html,
body{
    height: 100%;
    background-color: #fff;
}
ul,
ol,
li{
    margin: 0;
    padding: 0;
    list-style: none;
}
.fl-x{
    display: flex;
}
.fl-y{
    display: flex;
    flex-direction: column;
}

.lt-layout{
    max-width: 640px;
    min-width: 320px;
    height: 100%;
    // background-color: hotpink;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}
.lt-header{
    width: 100%;
    height: 45px;
    background-color: #069;
    a{
        width: 45px;
        height: 45px;
        text-align: center;
        line-height: 45px;
        color: #fff;
    }
    h4{
        flex: 1;
        text-align: center;
        margin: 0;
        line-height: 45px;
        color: #fff;
        font-weight: normal;
    }
}
.lt-main{
    flex: 1;
    position: relative;
    // 导航模块
    .main-nav{
        padding: 5px;
        li{
            float: left;
            width: 33.33%;
            img{
                width: 100%;
                display: block;
            }
        }
    }
    // 商品模块
    .lt-product{
        flex-wrap: wrap;
        justify-content: space-between;
        .item{
            text-align: center;
            padding: 5px;
            width: 48%;
            border: 1px solid #ccc;
            margin-bottom: 10px;
            img{
                width: 100%;
            }
            .lt-new{
                color: red;
            }
            .lt-old{
                text-decoration: line-through;
            }
        }
 
      
    }
}
.lt-footer{
    width: 100%;
    height: 50px;
    background-color: #069;
    ul{
        li{
            flex: 25%;
            text-align: center;
            padding-top: 5px;
            a{
                color: #fff;
                p{
                    color: #fff;
                }
            }
        }
        li.current{
            a{
                color: #daa520;
            }
            p{
                color: #daa520;
            }
        }
    }
}
